Abstract: A total of 72 weaning piglets with an average initial body weight of 8.72±1.01 kg were randomly allotted into one of three groups to investigate the effects of lipase on growth, digestive enzymes activities and intestinal morphology. Pigs were fed on the same basal diet supplemented with 0 and 200 mg kg-1 Uncoated Lipase (UC-LIP) or Coated Lipase (CT-LIP). After 28 days feeding trail, 18 pigs from the control, 200 mg kg-1 UC-LIP and 200 mg kg-1 CT-LIP groups were slaughtered to collect samples for assay. The results showed that supplemental lipase increased ADG (p<0.05) and decreased F:G ratio (p<0.05) and diarrhea rate (p<0.05) of pigs and the coated lipase is more effective than uncoated lipase. With the supplementation of CT-LIP, concentration of TP, FFA and LIP activity in serum was increased (p<0.05) and concentration of LDL, SUN, TG was decreased (p<0.05). The supplemental lipase increased lipase activity in pancreas (p<0.05) and the activities of trypsin, lipase, amylase and FFA concentration in duodenal content (p<0.05). Compared to the UT-LIP, the CT-LIP is more effective on the above digestive enzymes (p<0.05). The supplemental increased villus height, VH:CD ratio and decreased crypt depth in duodenum and jejunum (p<0.05). The results indicated that dietary supplementation of coated-lipase has positive effect on growth, digestion and intestinal morphology in weaning piglets.
S.Y. Chen, Z.X. Liu, Y.D. He, C. Chu and M.Q. Wang, 2014. Effect of Coated Lipase Supplementation on Growth, Digestion and Intestinal Morphology in Weaning Piglets. Journal of Animal and Veterinary Advances, 13: 1093-1097.